I also hate hangs. If you are working with the JVM you can send it a signal kill -3 [pid] which can give you a thread dump. That's a QUIT signal if you are curious. I once found a stuck HTTP request when I did this, so I fixed the issue by adding a timeout to the HTTP connection object.
When you are designing a system or a program you should have a way to get diagnostic information to make it easier to fix issues that can arise.
When you are designing a system or a program you should have a way to get diagnostic information to make it easier to fix issues that can arise.